Mark F. Coolbaugh, Ph.D. Chief Geoscientist
Mark Coolbaugh is Chief Geoscientist of RenGold. Mark assists in the assessment of properties, development of geological and exploration models, field mapping, and identification of exploration targets. He also applies cutting-edge research concepts to the digital display, analysis, and interpretation of geological, geophysical, and geochemical data.
Mark has approximately 30 years of exploration and research experience including as Chief Geoscientist for AuEx, Research Assistant Professor at the Great Basin Center for Geothermal Energy, University of Nevada, Reno; Chief Geoscientist for Geothermal Technical Partners, Inc., Mongolia Exploration Manager for Cascadia Chemicals and Minerals, and Chief Geologist for Carson Gold Corp. Mark is experienced in the exploration, development, and production of gold, silver, copper, and molybdenum resources in the Great Basin, Asia, and Central and South America, and in exploration for geothermal resources in the US and abroad. Mark played an integral role in the discovery of the Gatsuurt gold deposit in Mongolia and the discovery of over a half-dozen active geothermal systems in the US and South America.
Mark holds a doctorate degree in Geology from the University of Nevada, Reno (2003), a Master of Science in Geological Engineering from the University of Arizona (1985), and a Bachelor of Science in Geological Engineering from the Colorado School of Mines (1978). Mark is a member of the Geological Society of Nevada, the Geothermal Resources Council, Society of Economic Geologists, and SME/AIME. He is fluent in written Spanish and conversant in spoken Spanish.
Marcus K. Johnston, Ph.D. Senior Geologist
Marcus Johnston is a Senior Geologist for Renaissance Gold Inc., and participates mainly in the generation, assessment, and acquisition of projects, structurally based field mapping, and selection of exploration drilling targets. Marcus has 15 years of diverse experience in most practical aspects of gold/silver exploration and mining, with specific focus on precious metal deposits in the Great Basin physiographic province, USA. His ongoing research on the genesis of Carlin-type deposits and their relationships to porphyry and polymetallic deposits helped him develop published exploration models currently being used by several exploration groups.
From 2000 to 2004, Marcus worked for Newmont Gold Corp. While working with Newmont's Generative Exploration group, he was tasked with developing a regional exploration program for Carlin-type deposits, which led directly to the discovery of the Helen Zone deposit at Cove-McCoy. From 2004 to late 2010, Marcus worked his way to Chief Geologist and Nevada Exploration Manager for Victoria Gold Corp., and was critical in advancing several grassroots exploration programs at Mill Canyon, Santa Fe, and especially Cove-McCoy. His work with Victoria culminated with drilling the discovery hole at Windy Point, just before leaving to join the Renaissance Exploration Team in late 2010.
Marcus earned his Ph.D. in Geology from the Ralph J. Roberts Center for Research in Economic Geology, Mackay School of Mines, University of Nevada, Reno (2003), an M.Sc. degree in Geology from the University of North Carolina -- Wilmington (1998), and a B.Sc. degree in Earth Systems Science from George Mason University (1995). He is a member of the Society of Economic Geologists, and a member, Director, and past-President of the Geological Society of Nevada.
Lindsay Craig Senior Geologist
Lindsay Craig is a senior geologist with RenGold. Lindsay provides expertise to the Company through generative exploration, property submittal evaluation, prospect acquisition and target development.
In 2007, Lindsay began geologic consulting for AuEx where he provided support and management of field activities, performed property evaluations, data compilations and data synthesis for projects in the Great Basin and Argentina.
Lindsay has worked both as a consultant and as an employee for numerous mining companies that include: Billiton Minerals Corporation, Canyon Resources, Placer Dome Exploration, First Sierra Gold Corporation, Cordex Exploration Company, Bear Creek Mining Company and others. He was involved with the initial discovery of the Marigold Mine in Nevada, and the Briggs Mine in California, deposits at Fluorspar Canyon, the Sterling Mine in Nevada, and deposits in the Judith Mountains of Montana. These mines and deposits contain several million ounces of gold.
Lindsay graduated from Fort Lewis College, Durango, Colorado in 1982, with a B.S. in Geology. In 2000, he earned his Masters of Science degree from the University of Nevada, Reno where he studied both education and geology. From 1997-2007, Lindsay was an active secondary level math and science teacher in Reno schools. During this time he and his team won a major international technology competition on The Science of the Comstock.
Lindsay is a member of the Geologic Society of Nevada, Northwest Mining Association and the Society of Exploration Geologists.
Marilyn Miller Computer Geologist (Database Geologist)
Marilyn Miller is a geologist with RenGold. Marilyn is responsible for management of the Company's exploration data base including data compilation, verification, and data delivery and communication between joint venture partners. Her duties include generating project-level geology, land status and claim maps using GIS software. Marilyn also provides technical support to the staff as needed.
Marilyn has over 21 years of experience in the natural resources industry, including Computer Geologist for AuEx, Information Specialist for Kennecott Exploration (Rio Tinto), and Project Geologist for Santa Fe Pacific Gold Corporation. Her first 2 years in Nevada were spent looking for oil in the carbonate terrain of eastern Nevada with Cedar Strat. Her career has included project support for gold, silver and copper exploration projects in Nevada and Arizona.
Marilyn graduated from the University of Arkansas with a BS degree in Zoology in 1979 and received her M.S. in Geology in 1984. She is an active member of the Geological Society of Nevada (GSN), the Nevada Petroleum Society (NPS) and the Great Basin MapInfo User's Group.
Jessica L. Bresnahan Geologist
Jessica L. Bresnahan is a geologist with RenGold. Jessica provides geologic support to the Company through geologic field mapping, compilation of company & historic data and the creation of geology and land maps using GIS software.
Jessica's first professional job was with AuEx, where she worked for three years, partly while completing her Master's degree. In 2006, she began her Masters Thesis at the Mackay School of Mines at the University of Nevada, Reno. She completed her thesis on the Ruby Creek/Adanac porphyry molybdenum deposit in NW British Columbia in late 2009. Thesis studies completed on the deposit include deposit-level geological, geochemical, and age date studies, a comparison of the Adanac deposit and nearby placer gold deposits, and regional studies of other alkalic porphyry molybdenum deposits in relationship to igneous rock data. Relevant graduate-level classes included Ore Deposits, Hydrothermal Geochemistry, Ore Microscopy, and Isotope Geochemistry.
Jessica graduated from the University of Memphis in 2006 with a B.S. in Geology. While an undergraduate, she completed a senior thesis on clay mineralogy of the Chesapeake Bay Impact Structure, earned the Earth Science "student of the year" award, and was the recipient of the Lounsbury Geology Scholarship. She is currently a member of the Geological Society of Nevada (GSN) and Society of Economic Geologists (SEG).
Dan Pace Project Geologist
Dan Pace is a geologist with RenGold. Dan is project geologist at the Spruce Mountain property and assists with reconnaissance work elsewhere in the Great Basin.
Dan completed his BA at Colby College where he did research on hercynite veins in Maine as well as the sedimentary sequence across the Permian/Triassic extinction event as preserved in the Karoo Basin of South Africa. In 2006 Dan started at the University of Nevada, Reno as a Nevada Bureau of Mines and Geology research assistant for Dr. John Muntean. Under John's supervision Dan completed his Master's thesis on the RBM deposit in the Bald Mountain Mining District in 2009. During and following completion of his Master's thesis he consulted for Barrick at Bald Mountain. Using his research and understanding of the RBM deposit he helped define and drill out a new and significantly larger zone of mineralization, which became the Redbird deposit. Dan also worked on a number of exploration programs successfully targeting Carlin Style mineralization in Mooney Basin.
Dan is a member of the Geological Society of Nevada and the Society of Economic Geology.